Hydrochloric Acid and Magnesium Ribbon

Word Equation:

Magnesium + Hydrochloric acid → Magnesium chloride + Hydrogen

Formula Equation:

Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g)

Ionic Equation:

Mg (s) + 2H+ (aq) → Mg2+ (aq) + H2 (g)

Description

One gram of magnesium ribbon was dropped into a test tube containing 10 cm3 of hydrochloric acid (1M). The magnesium floated and reacted very quickly with the acid producing a colourless gas. eventually the reaction slowed down and the magnesium ribbon completely disappeared.